Depends on the game being played -- just because he's showing the 9-ball, doesn't mean the game is 9-ball.
If that's One Pocket, with this being the game winning ball (my opponent and I each have 7 balls), and my pocket is the upper left as shown, I'm cutting that ball in all day. I *might* consider the two-railer bank ("Z"-bank) the entire length of the table and back towards that same pocket, but getting down low on the shot (snooker fundamentals), I also feel comfortable with this type of cut shot. Plus, unlike the two-railer bank, the cut-shot, if it doesn't pocket, is most likely to leave the ball either inside the jaws of your pocket, or very close.
Just a different perspective on that shot

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-Sean